A.smoke,smoked B.smoking,have smoked C.smoke,have smoked.D smoking,smoked.I used to be addict to_.i _ for about 5 years,i thought i should break the bad habit.

the sign on the wall means No----.We shouldn't ----here.a.smoking,smoke b.smoke,smokeing c.smo A.smoke,smoked B.smoking,have smoked C.smoke,have smoked.D smoking,smoked.I used to be addict to_.i _ for about 5 years,i thought i should break the bad habit. 单选The doctor warned him __.A.not smoke B.not to smokeC.don't smokeD.should not smoke There is some ____ fish in the bowl. A.smoke. B.smoked. C.smoker. D.smoking Don't allow______in the classroom.A smoking B smokes C to smoke D smoked ---Have you ever smoked?---Yes,but it’s three months since I ____.A.smoked B.have smoked C.didn’t smoke D.haven’t smoked请问答案为什么选A,而不选C? since的问题5.-Do you smoke?-No,I don't.But I used to.It's two years since I ______ .A.smoked B.didn't smoke C.have smoked D.began to smoke为何不是完成时? –Does your father smoke?--_________,it’s 2 years since he __________.A.Yes; smoked B.No; smoked C.Yes; smokes D.No; has smoked这题选B,这是为什么呢? John promised his doctor he________not smoke,and he has never smoked ever.A.might B.should C.could Dwould A cook will be immediately fired if he is found-----in the kitchen A smoke B smoking c to smoke D smoked you__so much ,you are wasting your money A oughtn't smoke B oughtn't to have smoked C oughtn't have smoked D oughtn't to smokedD选项是smoke -I am wondering if i can smoke here -you can't smoke here.Regulations_in this room.A.are forbidden to smoke B.are forbidden smokingC.forbid to smokeD.forbid smoking为什么A不对? 单项选择并解释： ——Do you still smoke heavy? -----No. In fact, it is two years since I___.A.have stoped smoking B.smoked C.began to smoke D.started to smoke i saw John ( ) on the way home after school yesterday A.smokes B.smoking C.smoked D.to smokei saw John ( ) on the way home after school yesterday A.smokes B.smoking C.smoked D.to smoke After the examination,the doctor asked the man to give up___.asmoke b in somking C to smoke d smo We wish you __ so much.A haven't smoked B aren't smokingC don't smokeD didn't smoke为什么答案是D,这个句子不是虚拟语气吗 John promised his doctor he____not smoke,and he has smoked ever since.A.might B.should C.could D.would题目是否有错,为什么不是and he has not smoked ever since -you don't smoke,do you?-______,I have never smoked a cigarette before.A Yes,I do B No ,I don't